Concur with the comments so far, and would add that, provided you can control the aircraft competently on instruments then airways flying is miles simpler than VFR flying. You simply take off, enter CAS and are vectored or sent onto the final approach track. There is none of this VFR navigation, reporting passing auntie's house, and remain clear of this and that bit of airspace, and you don't need to worry whether you're about to be bounced by some other guy you haven't seen. As has been said already, provide you have a professional attitude to your flying and can fly straight and level on instruments (without an autopilot, preferably) then go IFR (i.e. Airways) whenever you can.
The IMC rating is also useful, provided you are aware of its limitations and remain current. If nothing else, it can get you through a layer of murk into the sunshine above (where less people usually are and conflict spotting is easier against a white cloud deck) before finding a way down at the other end. The engine failure scenario is of course one to consider, but what would your chances be realistically if you were scud running under a low cloudbase to remain VFR? I suppose you need to decide what is an acceptable risk. You are more likely to crash the car on the way to the airport than lose the engine above cloud and die.
You MUST remain current, however, and take a safety pilot along while you practice IFR approaches to IMC minima in VMC.
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"Take-off is optional, Landing is mandatory"